Lasers unveiled at Photonics West extend available applications
A variety of laser products were introduced at Photonics West in San Francisco, USA, for use in a wide range of applications, which will allow companies to enter new markets. IPG Photonics launched a portfolio including: an ECO family of kilowatt-class ytterbium fibre lasers with a wall-plug efficiency exceeding 40 per cent and an estimated operation time between service and intervention of five years; a Mega Pulse line of nanosecond fibre lasers with energy per pulse up to 100mJ and an average power up to 5kW; and a family of single-mode green fibre lasers providing up to 500W average power in CW and QCW modes with a wall-plug efficiency greater than 15 per cent.
The company also released: a range of high-power visible fibre lasers with a wavelength selection of green to red; industrial grade UV fibre lasers in both 355nm and 266nm, operating in pulsed or CW modes; families of industrial pico and femtosecond fibre lasers; and various versions of pulsed pure fibre and hybrid fibre to the crystal lasers for the MIR spectrum range of 2 to 4.5µm, including the first practical femtosecond laser source in a 2,400-2,500nm spectral range based on Cr:ZnS polycrystal elements. ‘We are unveiling a group of products
‘ We are unveiling a group of products that provide a multitude of solutions’
to increase the markets for IPG lasers, including semiconductors, LED, solar, displays, processing of thin films, entertainment, 3D cinema, 3D printing and other exciting applications.’ Spectra-Physics, a Newport company, introduced HighQ-2, an ultra-compact, air-cooled, fixed wavelength industrial femtosecond laser. The ultrafast laser delivers short pulses, high peak power (>190kW) and a highly focusable beam profile, suitable for fixed wavelength multiphoton imaging, micro- and nano-structuring, micro- and nano-surgery, and micro-dissection applications. ‘The new laser is ideal for powering high precision applications in bio-imaging, bio-medical and microprocessing,’ said Klaus Madlener, managing director for Spectra-Physics. Available in infrared and green
wavelengths, HighQ-2 has a footprint of less than 222 x 204 x 101mm and is an OEM laser for continuous operation. The laser is equipped with long-life diodes, a sealed optical cavity design, and is manufactured in a controlled, clean room environment. Also at the show, nanoelectronics research
that provide a multitude of new solutions to customers,’ said Dr Valentin Gapontsev, CEO. ‘Our expanded selection of lasers allows customers
company Imec exhibited its ultra-compact hyperspectral imaging sensor technology. The technology has been integrated into different commercial camera vendor partners, including SPIE 2014 Prism Award finalist BaySpec (USA), as well as Adimec (Netherlands), 3D-One (Netherlands), and Tattile (Italy).
Researchers develop diamond Raman laser
The University of Strathclyde in Scotland has employed synthetic diamond material produced by Element Six to develop a tunable, continuous- wave, diamond Raman laser. Element Six made the announcement at Photonics West on 3 February. The company’s high-purity
single-crystal chemical vapour deposition (CVD) diamond material has also been proven for use in intracavity cooling of disk lasers. The CVD diamond has the highest thermal conductivity of any material at room temperature (up
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diamond to produce higher output powers at wavelengths that are challenging to generate with conventional lasers.
to 2,200W/mK). Combined with a low absorption coefficient at a number of key wavelengths, the University of Strathclyde engineers were able to overcome a number of challenges typically associated with other materials. The university used synthetic
Dr Alan Kemp, senior research fellow at the University of Strathclyde, said of the achievement: ‘Synthetic diamond removed the thermal conductivity barriers associated with other materials, allowing us to successfully demonstrate higher power Raman lasers. This paves the way for much wider use of this unique and enabling material in solid-state laser engineering.’
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